What causes the factory transmission cooler bypass valve to fail?

Debris in the transmission fluid can cause the internal valve in the stock cooler bypass to jam. When this happens, it can get stuck in the recirculation mode, preventing fluid from going to the cooler.

How does this kit help prevent transmission overheating?

By replacing the factory bypass valve with a solid tube, this kit ensures that all transmission fluid is constantly routed through the external transmission cooler. This continuous flow helps dissipate heat more effectively, keeping temperatures down.

What is the purpose of the magnetic service plug?

The magnetic service plug is designed to attract and hold any ferrous metal particles that may be circulating in your transmission fluid. This can be a useful diagnostic tool to help identify potential internal wear issues.

BD Diesel 19-23 Chevrolet Silverado / GMC Sierra 1500 8L90 Cooler Bypass Delete

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Specifications

Brand: BD Diesel
Part #: 1061531
UPC: 990011411424

BD Diesel 19-23 Chevrolet Silverado / GMC Sierra 1500 8L90 Cooler Bypass Delete

Name: BD Diesel 19-23 Chevrolet Silverado / GMC Sierra 1500 8L90 Cooler Bypass Delete
Brand: BD Diesel
Price: 97.04 USD
Availability: InStock

$97.04

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Fits 2019-2023 Chevrolet Silverado 1500. This BD Diesel bypass delete kit eliminates the factory valve, ensuring constant cooler operation to keep transmission temps down.

Key Features

Fits 2019-2023 Chevrolet Silverado 1500, 2019-2023 GMC Sierra 1500, and 2019 GMC Sierra 1500 Limited.
Ensures 100 percent fluid flow through the transmission cooler.
Eliminates the factory bypass valve, a common failure point.
Helps keep transmission temperatures as low as possible.
Includes all necessary seals for installation.
Comes with a magnetic service plug.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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Fits these vehicles

Chevrolet Silverado 1500 2019-2023
GMC Sierra 1500 2019-2023
GMC Sierra 1500 Limited 2019

Product Details

Doing a transmission service on your 2019-2023 Chevrolet Silverado 1500 or GMC Sierra 1500? If you're concerned about transmission temperatures, especially under load, this cooler bypass delete kit from BD Diesel is worth a look. The factory bypass valve can get jammed with debris, forcing the transmission fluid to recirculate instead of going through the cooler. This can lead to higher temps and eventually damage your transmission.

This kit replaces that factory valve with a solid tube, ensuring that 100 percent of your transmission fluid always flows through the cooler. By keeping the fluid moving through the cooler constantly, you help keep your transmission temperatures as low as possible, which is crucial for longevity, especially if you tow or haul heavy loads. It comes with all the new seals you'll need for installation, plus a magnetic service plug, which can help you keep an eye on any potential metal wear in your transmission fluid.